I also saw this interesting tractor from an unknown manufacturer. It has a hydraulic pump attached to the rear of the engine and an oil cooler fan on the front.
Older Case/ Ingersoll. It has an all cast iron rear end housing with both high and low range, and is a hydro-stat to boot. As long as the oil was kept full and clean, these things are almost impossible to kill. Also, many of them had provisions for powering accessories such as Cat 0 three point linkages, hydraulic tillers, log splitters, etc. They're smooth to operate; in the photo's of the engine bay, you'll see that the motor mounting plate is vibration isolated on four rubber bushings. Keeps the dreaded numb hands/ feet behind at a minimum.
The only problem I had with the old one we still have on the farm was that the mower deck was designed for a golf course (perfectly flat with zero obstructions or hazards), while our farm lawn needed (still needs?) a Hydro Ax (R Tm) type machine. The only reason I gave up and parked it was it was going to cost me 1 1/2 times more to replace the deck (with another of same) than I paid for a brand new Ex-Mark commercial walk behind that had a 8" wider cut.
If you're looking for just a lawn machine, you'll probably be happier with a Cub. If you have a lawn mower, and are looking for a starting point to customize a work horse tractor build, I'd give that old Case a hard second glance.
Just my two cents.... Pat [[Cheers2]]